Dyeing



UNITED STATES PATENT OFFICE.

CHARLES S. ALTHOUSE, 0F READING, PENNSYLVANIA.

Patented Aug. 17, 1920.

DYEING.

1,349,867, Specification of Letters Patent.

No Drawing. Application filed June 24, 1920. Serial No. 391,466.

To all whom it may concern:

Be it known that I, CHARLES S. ALT- HOUSE, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Dyeing, of which the following is a specification.

This invention relates to improvements in the art of dyeing, and it pertains more particularly to the method of dyeing cotton goods a sulfur black.

In dyeing cotton goods black, and particularly in the case of hoisery and like articles, it is particularly desirable to produce an intense and brilliant black, and to this end I have devised the present process or method.

In the common process of dyeing goods of this character, the goods are firstdyed, then subjected to a washing, and thereafter subjected to a finishing or what is termed a softening bath.

In my present invention my object is to accomplish a particularly brilliant black, and also to produce a finished product in which the softening effect is intensified, and I accomplish this object by adding magnesium sulfate to the softening bath.

This softening bath usually consists of soluble oils or oil-emulsions, and I find by actual practice that the introduction of magnesium sulfate to this bath Will so affect the sulfur black that the result is a most brilliant and intense black, while the fabric is rendered very materially softer than when the magnesium sulfate is not used.

troduction of magnesium sulfate into the softening bath.

I claim 1. That step in theart of dyeing zJOttO goods sulfur black, which consists of introducing magnesium sulfate into the softening bath.

2. That step in the process of dyeing cotton goods sulfur black, which consists of subjecting the goods, after being dyed and washed, to a softening bath into which magnesium sulfate has been introduced.

3. A softening bath for black sulfur dyed cotton goods, containing magnesium sulfate.

4. A softening bath for black sulfur (1 ed cotton goods, containing magnesium sul ate in substantially the proportions specified.

In testimony whereof I aflix my slgnature.

CHARLES S. ALTHOUSE. 

